17. Josh is conducting a telephone survey for a telecommunications company. Over the course of a 4-h shift, he logged the following calls: 16 to single-family homes 21 to homes with more than one telephone line 17 to people who were satisfied with their current long-distance provider 11 to people who lived in single-family homes and were satisfied with their current long-distance provider 7 to single-family homes with more than one telephone line 9 to people who were satisfied with their long-distance provider and had more than one line 4 to people who lived in single-family homes, had more than one line, and were satisfied with their long- distance provider 5 to people who lived in multi-family buildings, had only one line, and were unhappy with their current long-distance provider How many calls did Josh make in this shift? Illustrate your answer with a Venn diagram. (4 marks, T; 3 marks, C)